Some previous work [1]}, [2]} suggests that RE models may not generalize well to unseen entities.
To evaluate whether the RE models can generalize to unseen entities, existing work designs a filtered evaluation setting [3]}.
This setting removes all testing instances containing entities from the training set of TACRED and TACREV, which results in filtered test sets of 4,599 instances on TACRED and TACREV.
These filtered test sets only contain instances with unseen entities during training.
